That's a tricky one.I'd say I hit about -E1 lights a day with -E2 days a year and -E1 year lifetime meaning I wait at -E4 lights during my life. There are about -E5 total minutes in a lifetime and if every redlight lasts approximately 2 minutes, the average person would spend -E4/-E5 (1/10) of their life waiting at stopligts.
How many metal track cleats are used in the U.S. each year.
The average track team has E1 members, There are E5 high schools and E4 colleges.
I'm probably really off but I'd say around E7.
If you take every book sold in the world in the past ten years and stack them vertically, how high would the stack be in terameters?